Staff Information

Ben ManganBen Mangan is Executive Director of the Center for Social Sector Leadership and on the faculty at Berkeley Haas. He teaches two MBA classes – Strategy and Leadership for Social Impact and the Social Lean Launchpad. Ben brings more than 20 years of experience in social impact leadership and management, including executive roles in Ernst & Young’s Public Private Development Group, and at an early virtual currency tech firm called beenz.com where he led organizational strategy.

Before joining Haas, Ben was the President, CEO and Co-Founder of EARN, a nonprofit social venture which uses the power of micro-savings and technology to help low-income workers in 16 states across the nation spark new cycles of prosperity.

Ben has served on several nonprofit boards and won numerous awards including Fast Company Social Capitalist of the Year, James Irvine Foundation Leadership Award and Tipping Point Community Award. He holds a Bachelor of Arts from Vassar College and a Master of Public Policy from Harvard University’s Kennedy School.

Ben is also a Senior Fellow at the Aspen Institute, and an appointee of the Community Advisory Council of the Federal Reserve Board.


Jill Erbland is Program Director for the Global Social Venture Competition and serves as the staff advisor to the Net Impact MBA Chapter and Haas Impact Investing Network. Prior to joining CSSL, Jill was Senior Program Manager at the Berkeley Haas Entrepreneurship Program. Jill has more than 20 years of experience in government, nonprofits, and higher education. She spent 8 years in Washington, DC, where she worked for two Members of Congress from the Bay Area and the Association of International Educators. She was also a program coordinator for the Transnational Executive MBA Program at Cal State East Bay. Jill has a BA in International Relations and minor in Psychology from California State University, Chico, and is a 2012 graduate of the Leadership Development Program for UC Berkeley staff. When not at Haas, you can probably find her volunteering at the Cat Town Adoption Center in Oakland.

Jill can be reached at 510-643-4592 or by email.


Cathy GarzaCathy Garza is Program Director, managing student as well as alumni and community facing initiatives. Some of these initiatives include the Berkeley Board Fellows program (for students) and the Social Impact Collective (for alumni and community). Cathy’s ties to Haas are longstanding. Formerly the Managing Director of the Fisher Center for Real Estate and Urban Economics’ Policy Advisory Board, she produced programming for 200+ Board members. She also spent four years in Haas’ Career Management Group advising students, working with employers to bring relevant opportunities to campus, and enhancing curriculum by bringing to campus a speaker series, a mentoring program, and varied networking opportunities. Prior to joining Berkeley Haas, Cathy worked in commercial banking in a variety of roles in marketing and finance, including as an analyst and lender and in corporate finance, working on some of the first asset backed securitizations of credit card receivables. Cathy is Bay Area educated receiving her MBA from Haas and her AB from Stanford. She is active in her community as a public school volunteer and has found the “spirit of the game” ethos of Ultimate Frisbee (her son’s current passion) to be applicable in her professional as well as personal life.

Cathy can be reached at 510-643-4359 or by email.


Stéphanie van Nassau is Program coordinator at the Center for Social Sector Leadership and oversees the administration and logistics of the Center’s events. She manages event planning, accounting, and expense reports. Prior to joining CSSL, Stephanie was a project manager at an Incentive Travel Company in New York City. Before moving to the States she worked in communications at the Association of Universities of Applied Sciences in the Netherlands. Stéphanie is in the office on Monday, Tuesday and Thursday and spends the rest of her time at the playground with her children.

Stephanie can be reached at 510-642-4884 or by email.


Mark Westover is Associate Director, managing the team’s back office initiatives. Prior to joining Berkeley Haas, Mark was CFO of xMatters, where he led a $15M debt financing and rebuilt the back office for a future IPO. Before that at LiveOps, Mark was responsible for Corporate Development and Finance where he split the company into two entities, raised $30M in debt financing and acquired two companies in the Call Center Software space. Mark spent ten years at Sybase/SAP in various strategic development roles. He was instrumental in reversing the financial and strategic decline of the company through appropriate market positioning, acquisitions, and finally the acquisition of Sybase by SAP.

Mark holds a MBA from the University of Chicago Booth and a BS in Mathematics from the University of Illinois, Urbana-Champaign. When not at work, he enjoys spending time with his family, cooking, cycling and watching Arsenal.